EP0865855A1 - Lame de scie circulaire à moyen épaissi - Google Patents

Lame de scie circulaire à moyen épaissi Download PDF

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Publication number
EP0865855A1
EP0865855A1 EP97890045A EP97890045A EP0865855A1 EP 0865855 A1 EP0865855 A1 EP 0865855A1 EP 97890045 A EP97890045 A EP 97890045A EP 97890045 A EP97890045 A EP 97890045A EP 0865855 A1 EP0865855 A1 EP 0865855A1
Authority
EP
European Patent Office
Prior art keywords
saw blade
hub
circular saw
hub disc
disc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97890045A
Other languages
German (de)
English (en)
Inventor
Erich Dipl.-Ing. Lohmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Martin Miller AG
Original Assignee
Martin Miller AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Martin Miller AG filed Critical Martin Miller AG
Priority to EP97890045A priority Critical patent/EP0865855A1/fr
Publication of EP0865855A1 publication Critical patent/EP0865855A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/02—Circular saw blades
    • B23D61/025—Details of saw blade body
    • B23D61/026—Composite body, e.g. laminated

Definitions

  • the invention relates to a circular saw blade with a thickened Hub area consisting of a saw blade of constant thickness and there is a hub disc.
  • Such circular saw blades are used in woodworking Industry, especially but not exclusively, used in so-called profiling systems, in which essentially round and almost straight debarked Trunk profiles are cut or milled, which in subsequently processed into boards.
  • profiling systems in which essentially round and almost straight debarked Trunk profiles are cut or milled, which in subsequently processed into boards.
  • the one there The steps involved essentially include that Milling off the rinds in order to obtain wood chips, milling off the remaining areas that still have the have original outer surface to four narrow Boards inside the rinds, but still outside the then saw off the rectangular or square trunk can, sawing off those narrower boards and finally the final sawing of the trunk.
  • Circular saw blades have different dynamic and mechanical areas thickened hub areas. you will be by means of several countersunk screws in the flange area attached to a front shoulder of a shaft, centering through a central hole in the circular saw blade he follows.
  • the invention aims to remedy this and suggests the hub disc or the hub discs glue on the saw blade.
  • the adhesive 3 is applied flatly and preferably without gaps, it is preferred that it be on the outer periphery of the Hub disc extends up to this extent and particularly preferred, as shown, in the manner of a fillet Impact between saw blade 1 and hub disc 2 covered.
  • Methacrylate in particular urea methacrylate, has proven particularly useful as an adhesive. Since the adhesives which can be used according to the invention are commercially available, it is generally possible to use adhesives whose shear stress in the hardened state, measured according to DIN 53283, is between 12 and 25 N / mm 2 and whose tensile stress, measured according to DIN 53288, is between 15 and 25 N / mm 2 . Examples of such adhesives are LOCTITE Product 326 and omniFIT seal 50 H from omniTECHNIC GmbH.
  • the hub disc 2 is on a precision grinding machine to the required thickness tolerance of the circular saw blade in the flange area of ⁇ 0.02 mm ground.
  • the center hole can also be ground to ensure the best possible match between the To achieve saw blade 1 and the hub disc 2 if not these center holes are used to both that Saw blade as well as the hub disc when gluing center. All of this can be done before or after drilling the Holes 4 (see below) are made.
  • the thickness of the adhesive layer depends on the used Adhesive and is, for example, when using Urea methacrylate between 0.1 and 0.5 mm, the smaller layer thickness is preferred.
  • the mounting holes 4 shown for countersunk screws are trained with whom the saw blade its shaft is fixed, are only glued in the finished Condition of the saw blade drilled and flared because this is easier on the one hand and secondly more precise than with separate production. It also shows up the durability of the adhesive bond used according to the invention.
  • Another advantage of gluing both over the one piece Training as well as towards the riveted Connection is the creation of an even state of tension both in the manufacture of the saw blade as well as during its operation.
  • that Saw blade produced according to the invention easier than that to judge others and above all the advantage of less risk of cracking in the transition area compared to the one-piece leaves. This transition area will rounded to prevent notching, but this is done by machining, so that the formation of microscopic small cracks and nicks is inevitable. These are regular starting points for cracks that extend the lifespan of the saw blade significantly.
  • the invention is not shown on or described embodiment limited. That's the way it is possible to change the number of holes 4 or both To provide sides of the saw blade 1 hub discs 2 and to be glued to the saw blade.
  • the hub discs exist preferably made of the same material as the saw blades, at least they should be in the working temperature range the same possible thermal expansion coefficient like this one.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP97890045A 1997-03-12 1997-03-12 Lame de scie circulaire à moyen épaissi Withdrawn EP0865855A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97890045A EP0865855A1 (fr) 1997-03-12 1997-03-12 Lame de scie circulaire à moyen épaissi

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97890045A EP0865855A1 (fr) 1997-03-12 1997-03-12 Lame de scie circulaire à moyen épaissi

Publications (1)

Publication Number Publication Date
EP0865855A1 true EP0865855A1 (fr) 1998-09-23

Family

ID=8231093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97890045A Withdrawn EP0865855A1 (fr) 1997-03-12 1997-03-12 Lame de scie circulaire à moyen épaissi

Country Status (1)

Country Link
EP (1) EP0865855A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2020271A3 (fr) * 2007-07-26 2010-11-17 Böhler Miller Messer und Sägen GmbH Lame de scie à bride
DE202013002359U1 (de) 2013-03-11 2013-03-27 Tkm Austria Gmbh Flanschsägeblatt

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4034639A (en) * 1976-09-16 1977-07-12 Minnesota Mining And Manufacturing Company Sound-damped saw blade
DE3121130A1 (de) * 1981-05-27 1982-12-30 Gebrüder Linck Maschinenfabrik und Eisengießerei "Gatterlinck", 7602 Oberkirch Kreissaegekopf zum absaegen von seitenbrettern
DE3614341A1 (de) * 1986-04-28 1987-10-29 Jansen Herfeld Roettger Fa Kreissaegeblatt mit flanschring
DE4405475A1 (de) * 1993-02-22 1994-08-25 Miller Martin Ag Kreissägeblatt

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4034639A (en) * 1976-09-16 1977-07-12 Minnesota Mining And Manufacturing Company Sound-damped saw blade
DE3121130A1 (de) * 1981-05-27 1982-12-30 Gebrüder Linck Maschinenfabrik und Eisengießerei "Gatterlinck", 7602 Oberkirch Kreissaegekopf zum absaegen von seitenbrettern
DE3614341A1 (de) * 1986-04-28 1987-10-29 Jansen Herfeld Roettger Fa Kreissaegeblatt mit flanschring
DE4405475A1 (de) * 1993-02-22 1994-08-25 Miller Martin Ag Kreissägeblatt

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2020271A3 (fr) * 2007-07-26 2010-11-17 Böhler Miller Messer und Sägen GmbH Lame de scie à bride
DE202013002359U1 (de) 2013-03-11 2013-03-27 Tkm Austria Gmbh Flanschsägeblatt

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